Mount Everest is a mountain in the Himalayas and with a height of 8848 m the highest mountain on earth. He belongs to the 14 eight-thousanders and to the Seven Summits. Mount Everest has been named after the British surveyor George Everest since 1856. In Nepali the mountain is called Sagarmatha, in Tibetan Qomolangma (German pronunciation "Tschomolangma"), Chinese/Mandarin 珠穆朗瑪峰, Zhūmùlǎngmǎ Fēng.
Mount Everest is located in the Mahalangur Himal in the Khumbu region of Nepal on the border with China (Tibet Autonomous Region); The western and southeastern of its three summit ridges form the border. On the Nepalese side, it is part of Sagarmatha National Park, which is a UNESCO World Heritage Site. On the northern side, it is part of the Qomolangma National Nature Reserve, which corresponds with the UNESCO-designated Qomolangma Biosphere Reserve.
Edmund Hillary and Tenzing Norgay succeeded in making the first ascent of the "third pole" on May 29, 1953. On May 8, 1978, Reinhold Messner and Peter Habeler climbed the summit for the first time without supplemental oxygen. To date (as of the end of 2018), the Summit around 8400 times reached by climbers. Over 300 climbers lost their lives on the way there or back.
While Mount Everest is the highest elevation above sea level, two other mountains exist that deserve the title "highest mountain on Earth." Measured from the base of the mountain, this is the volcano Mauna Kea in Hawaii, and measured from the Chimborazo in Ecuador.